4H-Pyrazolo[1,5-a]benzimidazole-3-carbonitrile CAS 64096-91-9
| CAS No. | 64096-91-9 |
| Molecular Formula | C10H6N4 |
| Molecular Weight | 182.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4H-Pyrazolo[1,5-a]benzimidazole-3-carbonitrile (CAS 64096-91-9) is a high-purity analytical reference standard with the molecular formula C10H6N4 and a molecular weight of 182.18 g/mol.
4H-Pyrazolo[1,5-a]benzimidazole-3-carbonitrile (C10H6N4) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H6N4 |
| Molecular Weight | 182.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 4 |
Related H Standards
- Pyrazolo[1,5-a]pyrimidine-3-carbonyl chloride (CAS 937602-40-9)
- 4H-Pyrazolo[5,1-c][1,4]oxazine-6-carbonitrile, 3-chloro-6,7-dihydro- (CAS 2121711-49-5)
- Pyrazolo[1,5-a]pyridine-3-carbonyl chloride (CAS 78933-24-1)
- 1H-pyrazolo[3,4-b]quinolin-3-amine (CAS 106835-44-3)
- 1H-pyrazolo[4,3-c]quinolin-3-amine (CAS 156912-12-8)
- methyl pyrazolo[1,5-a]pyridine-5-carboxylate (CAS 1101120-07-3)
- 2H-Pyrazolo[4,3-d]pyrimidine-3-carbonitrile, 5-chloro- (CAS 2092193-29-6)
- Pyrazolo[1,5-a]quinoxalin-4(5H)-one (CAS 114722-60-0)
Recommended Standards
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- 4,6-Dichloro-2-(tetrahydrofuran-2-yl)pyrimidine (CAS 1483355-82-3)
- 3-(Thiazol-2-ylamino)tetrahydro-2H-thiopyran 1,1-dioxide (CAS 1341117-68-7)
- Octyl 6-bromo-2-(p-tolyl)quinoline-4-carboxylate (CAS 355421-14-6)
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